EP1052823A3 - Linearisation of amplification for signals modulated in phase and amplitude - Google Patents

Linearisation of amplification for signals modulated in phase and amplitude Download PDF

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Publication number
EP1052823A3
EP1052823A3 EP00110105A EP00110105A EP1052823A3 EP 1052823 A3 EP1052823 A3 EP 1052823A3 EP 00110105 A EP00110105 A EP 00110105A EP 00110105 A EP00110105 A EP 00110105A EP 1052823 A3 EP1052823 A3 EP 1052823A3
Authority
EP
European Patent Office
Prior art keywords
amplitude
phase
linearisation
amplification
signals modulated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00110105A
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German (de)
French (fr)
Other versions
EP1052823A2 (en
Inventor
Jan Bollenbeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1052823A2 publication Critical patent/EP1052823A2/en
Publication of EP1052823A3 publication Critical patent/EP1052823A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

Schaltungsanordnung (100) zur Verstärkung von phasen und amplitudenmodulierten HF-Signalen, insbesondere Sendeteil eines Mobilfunk-Endgerätes, mit einer nichtlinearen Leistungsverstärkerstufe (103) und Regelungsmitteln zur Linearisierung der Übertragungskennlinie, wobei die Regelungsmittel eine Amplitudenregelschleife (125, 129, 141) und eine von dieser im wesentlichen getrennte Phasenregelschleife (117, 119, 121, 123, 137, 139) mit einem einstellbaren Phasenschieber (115) umfassen.

Figure 00000001
Circuit arrangement (100) for amplifying phase and amplitude-modulated RF signals, in particular transmitting part of a mobile radio terminal, with a non-linear power amplifier stage (103) and control means for linearizing the transmission characteristic, the control means comprising an amplitude control loop (125, 129, 141) and one of this comprises essentially separate phase locked loops (117, 119, 121, 123, 137, 139) with an adjustable phase shifter (115).
Figure 00000001
EP00110105A 1999-05-11 2000-05-09 Linearisation of amplification for signals modulated in phase and amplitude Withdrawn EP1052823A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19921866 1999-05-11
DE19921866 1999-05-11

Publications (2)

Publication Number Publication Date
EP1052823A2 EP1052823A2 (en) 2000-11-15
EP1052823A3 true EP1052823A3 (en) 2003-11-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110105A Withdrawn EP1052823A3 (en) 1999-05-11 2000-05-09 Linearisation of amplification for signals modulated in phase and amplitude

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EP (1) EP1052823A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101079600B (en) * 2006-05-04 2012-01-25 西门子公司 Regulator for high frequency amplifier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10217381B4 (en) * 2002-04-18 2015-01-15 Qualcomm Incorporated Method and apparatus for improving the adjacent channel transmission of a main amplifier
US7869484B2 (en) 2005-05-23 2011-01-11 Mihai Margarit Transmitter apparatus with adaptive power and phase for CDMA applications

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023937A (en) * 1989-05-09 1991-06-11 Motorola, Inc. Transmitter with improved linear amplifier control
EP0441579A1 (en) * 1990-02-08 1991-08-14 Gec-Marconi Limited Circuit for reducing distortion produced by an r.f. power amplifier
EP0546693A1 (en) * 1991-11-29 1993-06-16 Matsushita Electric Industrial Co., Ltd. Control circuit and method for transmission output
DE19630917C1 (en) * 1996-07-31 1998-03-26 Siemens Ag Phase and frequency detector circuit
EP0998088A2 (en) * 1998-10-27 2000-05-03 Nokia Mobile Phones Ltd. Modulation with separate stages for phase and amplitude modulation
WO2001065706A2 (en) * 2000-02-29 2001-09-07 Marconi Communications Gmbh Device for linearising a high-frequency amplifier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023937A (en) * 1989-05-09 1991-06-11 Motorola, Inc. Transmitter with improved linear amplifier control
EP0441579A1 (en) * 1990-02-08 1991-08-14 Gec-Marconi Limited Circuit for reducing distortion produced by an r.f. power amplifier
EP0546693A1 (en) * 1991-11-29 1993-06-16 Matsushita Electric Industrial Co., Ltd. Control circuit and method for transmission output
DE19630917C1 (en) * 1996-07-31 1998-03-26 Siemens Ag Phase and frequency detector circuit
EP0998088A2 (en) * 1998-10-27 2000-05-03 Nokia Mobile Phones Ltd. Modulation with separate stages for phase and amplitude modulation
WO2001065706A2 (en) * 2000-02-29 2001-09-07 Marconi Communications Gmbh Device for linearising a high-frequency amplifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOWLATI T ET AL: "PHASE-CORRECTING FEEDBACK SYSTEM FOR CLASS E POWER AMPLIFIER", IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. 32, no. 4, 1 April 1997 (1997-04-01), IEEE, NEW YORK, US, pages 544 - 550, XP000659735, ISSN: 0018-9200 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101079600B (en) * 2006-05-04 2012-01-25 西门子公司 Regulator for high frequency amplifier

Also Published As

Publication number Publication date
EP1052823A2 (en) 2000-11-15

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